The "scadenza" date of my TIM SIM is in two months' time. The balance is somehow negative by €4 after I lent it to a friend last year. I was wondering whether to port the number to Lycamobile, just so I can keep my number.

Is it easy to get a Lycamobile SIM card, and is it then easy to port my number? I live in London, but I have Italian friends who go to Italy quite often.